I am no vet or biologist, but I do not see how you can squeeze a broadhead between the spine and lungs of a deer over the kill zone, now if your shot was high and forward, or high and back I could see it, but there is no way shooting in the kill zone. Just an old guys opinion after gutting/butchering a couple of deer.

Any one who really feels there is a dead zone, I would like you to take the next deer you kill, gut and skin it, hang it and then see if you can figure out a way of getting a broadhead under the spine above the kill zone without cutting the spinal artery and at least cutting the top of the lung cavity.

One more thing to think about for those of you hunting from a tree stand, try it at the angle the arrow would enter from your treestand!!! I bet you money you can' t even come close to doing it.